Multiple instance visual scene

Will the collada supports multiple instance visual scene.I am having doubt whether scene will contains multiple instance visual scenes because i know that it will handel number of physics simulation.
Suppose in simillar way, if i want to represent multiple scenes in same file with the collada.Is it possible.

Thanks & Regards,

The <scene> element can instance one visual scene. It is there as a guide to applications that want to know which visual scene in the <library_visual_scenes> is the one that the document says to use.

An application that can handle multiple visual scenes, like a browser, can process any and all the visual scenes that are in the libraries.